Patents by Inventor Hidemitsu TOBA

Hidemitsu TOBA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10768341
    Abstract: An optical member to be arranged in an optical path of a light, includes an optical medium made of an insulator or a semiconductor; a first element provided at a first position in the optical medium and made of a first electric conductor having a width approximately same as or smaller than a wavelength of the light, the first position being a position in the optical path; and a second element provided at a second position, in the optical medium, different from the first position, and made of a second electric conductor having a width approximately same as or smaller than the wavelength of the light, the second position being a position in the optical path.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: September 8, 2020
    Assignee: NIKON CORPORATION
    Inventors: Soichi Owa, Shunji Watanabe, Junji Suzuki, Kazuhiro Kido, Hidemitsu Toba
  • Publication number: 20180284324
    Abstract: An optical member to be arranged in an optical path of a light, includes an optical medium made of an insulator or a semiconductor; a first element provided at a first position in the optical medium and made of a first electric conductor having a width approximately same as or smaller than a wavelength of the light, the first position being a position in the optical path; and a second element provided at a second position, in the optical medium, different from the first position, and made of a second electric conductor having a width approximately same as or smaller than the wavelength of the light, the second position being a position in the optical path.
    Type: Application
    Filed: June 6, 2018
    Publication date: October 4, 2018
    Applicant: NIKON CORPORATION
    Inventors: Soichi OWA, Shunji WATANABE, Junji SUZUKI, Kazuhiro KIDO, Hidemitsu TOBA
  • Patent number: 10012768
    Abstract: An optical material which has a relative permeability different from 1 to light having a wavelength in, for example, the infrared region or shorter than the infrared region and which is stable in structure, and a liquid and a solid (optical element) using the optical material. The optical material is a powder used as a component of a liquid or solid to which an illuminating light is irradiated, and includes a large number of resonating elements which constitute the powder and each of which is formed of a conductor having a width approximately same as or smaller than a wavelength of the illumination light, and a protective film which is formed of a disc-shaped insulator, wherein an entire surface of each of the split-rind resonators is covered by the protective film.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 3, 2018
    Assignee: NIKON CORPORATION
    Inventors: Soichi Owa, Shunji Watanabe, Junji Suzuki, Kazuhiro Kido, Hidemitsu Toba
  • Publication number: 20160195640
    Abstract: An optical material which has a relative permeability different from 1 to light having a wavelength in, for example, the infrared region or shorter than the infrared region and which is stable in structure, and a liquid and a solid (optical element) using the optical material. The optical material is a powder used as a component of a liquid or solid to which an illuminating light is irradiated, and includes a large number of resonating elements which constitute the powder and each of which is formed of a conductor having a width approximately same as or smaller than a wavelength of the illumination light, and a protective film which is formed of a disc-shaped insulator, wherein an entire surface of each of the split-rind resonators is covered by the protective film.
    Type: Application
    Filed: March 11, 2016
    Publication date: July 7, 2016
    Applicant: NIKON CORPORATION
    Inventors: Soichi OWA, Shunji WATANABE, Junji SUZUKI, Kazuhiro KIDO, Hidemitsu TOBA
  • Patent number: 9310520
    Abstract: An optical material which has a relative permeability different from 1 to light having a wavelength in, for example, the infrared region or shorter than the infrared region and which is stable in structure, and a liquid and a solid (optical element) using the optical material. The optical material is a powder used as a component of a liquid or solid to which an illuminating light is irradiated, and includes a large number of resonating elements which constitute the powder and each of which is formed of a conductor having a width approximately same as or smaller than a wavelength of the illumination light, and a protective film which is formed of a disc-shaped insulator, wherein an entire surface of each of the split-ring resonators is covered by the protective film.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 12, 2016
    Assignee: NIKON CORPORATION
    Inventors: Soichi Owa, Shunji Watanabe, Junji Suzuki, Kazuhiro Kido, Hidemitsu Toba
  • Publication number: 20120088078
    Abstract: An optical material which has a relative permeability different from 1 to light having a wavelength in, for example, the infrared region or shorter than the infrared region and which is stable in structure, and a liquid and a solid (optical element) using the optical material. The optical material is a powder used as a component of a liquid or solid to which an illuminating light is irradiated, and includes a large number of resonating elements which constitute the powder and each of which is formed of a conductor having a width approximately same as or smaller than a wavelength of the illumination light, and a protective film which is formed of a disc-shaped insulator, wherein an entire surface of each of the split-ring resonators is covered by the protective film.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 12, 2012
    Applicant: NIKON CORPORATION
    Inventors: Soichi OWA, Shunji WATANABE, Junji SUZUKI, Kazuhiro KIDO, Hidemitsu TOBA